Changes

*'''[http://www.mozilla.org/projects/calendar/releases/lightning0.57.html Lightning 0.57]''' - The calendaring extension for [http://www.mozilla.com/thunderbird/ Mozilla Thunderbird]*'''[http://www.mozilla.org/projects/calendar/releases/sunbird0.57.html Sunbird 0.57]''' - Our standalone calendar application for Linux, Mac OS X, and Windows.